chrome.browserAction.onClicked.addListener((tab) => {
  chrome.tabs.executeScript({
    code: 'document.body.style.backgroundColor = "red";',
  });
});
chrome.runtime.onMessage.addListener((message) => {
  if (message.action === "show") {
    document.getElementById("elementHtml").innerText = message.text;
    console.log("from background:", message);
  }
});
